Comment 5 for bug 389465

@Paul If the user wants to download and install it, he should be able to do it easily. We are not allowed to decide that for him; it's his operating system, his machine, and his decision. The thing about usability, as I see it, is to make things as easy as we can for the inexperienced user. If we think what he wants to do is a bad idea, we can try to educate him with a warning dialog, but making it harder to make him forget about installing the program is a bad idea from any point of view: he will be disappointed and won't even know what is happening, so nobody wins.

Or, as Timmy said, he will use Google, find an answer, and install it anyway. And will tell his friends that Ubuntu is not user friendly because it took him 10 minutes to do such an easy thing.